require "${General::swroot}/lang.pl";
require "${General::swroot}/header.pl";
-sub refreshpage{&Header::openbox( 'Waiting', 1, "<meta http-equiv='refresh' content='1;'>" );print "<center><img src='/images/clock.gif' alt='' /><br/><font color='red'>$Lang::tr{'pagerefresh'}</font></center>";&Header::closebox();}
-
my %color = ();
my %mainsettings = ();
&General::readhash("${General::swroot}/main/settings", \%mainsettings);
&Header::getcgihash(\%snortsettings, {'wantfile' => 1, 'filevar' => 'FH'});
-####################### Added for snort rules control #################################
-my $snortrulepath; # change to "/etc/snort/rules" - maniac
-my @snortconfig;
+my $snortrulepath = "/etc/snort/rules";
my $restartsnortrequired = 0;
my %snortrules;
my $rule = '';
my $border = '';
my $checkboxname = '';
-if (-e "/etc/snort/snort.conf") {
-
-
- # Open snort.conf file, read it in, close it, and re-open for writing
- open(FILE, "/etc/snort/snort.conf") or die 'Unable to read snort config file.';
- @snortconfig = <FILE>;
- close(FILE);
- open(FILE, ">/etc/snort/snort.conf") or die 'Unable to write snort config file.';
-
- my @rules = `cd /etc/snort/rules/ && ls *.rules 2>/dev/null`; # With this loop the rule might be display with correct rulepath set
- foreach (@rules) {
- chomp $_;
- my $temp = join(";",@snortconfig);
- if ( $temp =~ /$_/ ){next;}
- else { push(@snortconfig,"#include \$RULE_PATH/".$_);}
- }
-
- # Loop over each line
- foreach my $line (@snortconfig) {
- # Trim the line
- chomp $line;
-
- # Check for a line with .rules
- if ($line =~ /\.rules$/) {
- # Parse out rule file name
- $rule = $line;
- $rule =~ s/\$RULE_PATH\///i;
- $rule =~ s/ ?include ?//i;
- $rule =~ s/\#//i;
- my $snortrulepathrule = "$snortrulepath/$rule";
-
- # Open rule file and read in contents
- open(RULEFILE, "$snortrulepath/$rule") or die "Unable to read snort rule file for reading => $snortrulepath/$rule.";
- my @snortrulefile = <RULEFILE>;
- close(RULEFILE);
- open(RULEFILE, ">$snortrulepath/$rule") or die "Unable to write snort rule file for writing $snortrulepath/$rule";
-
- # Local vars
- my $dashlinecnt = 0;
- my $desclook = 1;
- my $snortruledesc = '';
- my %snortruledef = ();
- my $rulecnt = 1;
-
- # Loop over rule file contents
- foreach my $ruleline (@snortrulefile) {
- chomp $ruleline;
-
- # If still looking for a description
- if ($desclook) {
- # If line does not start with a # anymore, then done looking for a description
- if ($ruleline !~ /^\#/) {
- $desclook = 0;
- }
-
- # If see more than one dashed line, (start to) create rule file description
- if ($dashlinecnt > 1) {
- # Check for a line starting with a #
- if ($ruleline =~ /^\#/ and $ruleline !~ /^\#alert/) {
- # Create tempruleline
- my $tempruleline = $ruleline;
-
- # Strip off # and clean up line
- $tempruleline =~ s/\# ?//i;
-
- # Check for part of a description
- if ($snortruledesc eq '') {
- $snortruledesc = $tempruleline;
- } else {
- $snortruledesc .= " $tempruleline";
- }
- } else {
- # Must be done
- $desclook = 0;
- }
- }
-
- # If have a dashed line, increment count
- if ($ruleline =~ /\# ?\-+/) {
- $dashlinecnt++;
- }
- } else {
- # Parse out rule file rule's message for display
- if ($ruleline =~ /(msg\:\"[^\"]+\";)/) {
- my $msg = '';
- $msg = $1;
- $msg =~ s/msg\:\"//i;
- $msg =~ s/\";//i;
- $snortruledef{$rulecnt}{'Description'} = $msg;
-
- # Check for 'Save' and rule file displayed in query string
- if (($snortsettings{'ACTION'} eq $Lang::tr{'update'}) && ($ENV{'QUERY_STRING'} =~ /$rule/i)) {
- # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
- if ((($ruleline =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"})) || (($ruleline !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}))) {
- $restartsnortrequired = 1;
- }
-
- # Strip out leading # from rule line
- $ruleline =~ s/\# ?//i;
-
- # Check if it does not exists (which means it is disabled), append a #
- if (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}) {
- $ruleline = "#"." $ruleline";
- }
- }
-
- # Check if ruleline does not begin with a #, so it is enabled
- if ($ruleline !~ /^\#/) {
- $snortruledef{$rulecnt++}{'State'} = 'Enabled';
- } else {
- # Otherwise it is disabled
- $snortruledef{$rulecnt++}{'State'} = 'Disabled';
- }
- }
- }
-
- # Print ruleline to RULEFILE
- print RULEFILE "$ruleline\n";
- }
-
- # Close RULEFILE
- close(RULEFILE);
-
- # Check for 'Save'
- if ($snortsettings{'ACTION'} eq $Lang::tr{'update'}) {
- # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
- if ((($line =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule"})) || (($line !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule"}))) {
- $restartsnortrequired = 1;
- }
-
- # Strip out leading # from rule line
- $line =~ s/\# ?//i;
-
- # Check if it does not exists (which means it is disabled), append a #
- if (!exists $snortsettings{"SNORT_RULE_$rule"}) {
- $line = "# $line";
- }
+## Grab all available snort rules and store them in the snortrules hash.
+#
+# Open snort rules directory and do a directory listing.
+opendir(DIR, $snortrulepath) or die $!;
+ # Loop through the direcory.
+ while (my $file = readdir(DIR)) {
- }
+ # We only want files.
+ next unless (-f "$snortrulepath/$file");
- # Check for rule state
- if ($line =~ /^\#/) {
- $snortrules{$rule}{"State"} = "Disabled";
- } else {
- $snortrules{$rule}{"State"} = "Enabled";
- }
+ # Ignore empty files.
+ next if (-z "$snortrulepath/$file");
- # Set rule description
- $snortrules{$rule}{"Description"} = $snortruledesc;
+ # Use a regular expression to find files ending in .rules
+ next unless ($file =~ m/\.rules$/);
- # Loop over sorted rules
- foreach my $ruledef (sort {$a <=> $b} keys(%snortruledef)) {
- $snortrules{$rule}{"Definition"}{$ruledef}{'Description'} = $snortruledef{$ruledef}{'Description'};
- $snortrules{$rule}{"Definition"}{$ruledef}{'State'} = $snortruledef{$ruledef}{'State'};
- }
-
- $snortruledesc = '';
- print FILE "$line\n";
- } elsif ($line =~ /var RULE_PATH/) {
- ($tmp, $tmp, $snortrulepath) = split(' ', $line);
- print FILE "$line\n";
- } else {
- print FILE "$line\n";
- }
- }
- close(FILE);
+ # Ignore files which are not read-able.
+ next unless (-R "$snortrulepath/$file");
- if ($restartsnortrequired) {
- system('/usr/local/bin/snortctrl restart >/dev/null');
+ # Call subfunction to read-in rulefile and add rules to
+ # the snortrules hash.
+ &readrulesfile("$file");
}
-}
-####################### End added for snort rules control #################################
+closedir(DIR);
if ($snortsettings{'OINKCODE'} ne "") {
$errormessage = $Lang::tr{'invalid input for oink code'} unless ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/);
&Header::openpage($Lang::tr{'intrusion detection system'}, 1, '');
-####################### Added for snort rules control #################################
-print "<script type='text/javascript' src='/include/snortupdateutility.js'></script>";
+### Java Script ###
+print <<END
+<script>
+ // Tiny java script function to show/hide the rules
+ // of a given category.
+ function showhide(tblname) {
+ \$("#" + tblname).toggle();
+ }
+</script>
+END
+;
+
print <<END
<style type="text/css">
<!--
</style>
END
;
-####################### End added for snort rules control #################################
&Header::openbigbox('100%', 'left', '', $errormessage);
&Header::closebox();
-####################### Added for snort rules control #################################
-if ( -e "${General::swroot}/snort/enable" || -e "${General::swroot}/snort/enable_green" || -e "${General::swroot}/snort/enable_blue" || -e "${General::swroot}/snort/enable_orange" ) {
- &Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'});
- # Output display table for rule files
- print "<table width='100%'><tr><td valign='top'><table>";
+&Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'});
+ # Output display table for rule files
+ print "<table width='100%'>\n";
- print "<form method='post'>";
+ # Local variable required for java script to show/hide
+ # rules of a rulefile.
+ my $rulesetcount = 1;
- # Local vars
- my $ruledisplaycnt = 1;
- my $rulecnt = keys %snortrules;
- $rulecnt++;
- $rulecnt = $rulecnt / 2;
-
- # Loop over each rule file
- foreach my $rulefile (sort keys(%snortrules)) {
- my $rulechecked = '';
-
- # Hide inkompatible Block rules
- if ($rulefile =~'-BLOCK.rules') {
- next;
- }
+ # Loop over each rule file
+ foreach my $rulefile (sort keys(%snortrules)) {
+ my $rulechecked = '';
- # Check if reached half-way through rule file rules to start new column
- if ($ruledisplaycnt > $rulecnt) {
- print "</table></td><td valign='top'><table>";
- $ruledisplaycnt = 0;
- }
+ # Check if rule file is enabled
+ if ($snortrules{$rulefile}{"State"} eq 'Enabled') {
+ $rulechecked = 'CHECKED';
+ }
- # Check if rule file is enabled
- if ($snortrules{$rulefile}{"State"} eq 'Enabled') {
- $rulechecked = 'CHECKED';
- }
+ # Table and rows for the rule files.
+ print"<tr>\n";
+ print"<td class='base' width='5%'>\n";
+ print"<input type='checkbox' name='SNORT_RULE_$rulefile' $rulechecked>\n";
+ print"</td>\n";
+ print"<td class='base' width='90%'><b>$rulefile</b></td>\n";
+ print"<td class='base' width='5%' align='right'>\n";
+ print"<a href=\"javascript:showhide('ruleset$rulesetcount')\">SHOW</a>\n";
+ print"</td>\n";
+ print"</tr>\n";
+
+ # Rows which will be hidden per default and will contain the single rules.
+ print"<tr style='display:none' id='ruleset$rulesetcount'>\n";
+ print"<td colspan='3'>\n";
- # Create rule file link, vars array, and display flag
- my $rulefilelink = "?RULEFILE=$rulefile";
- my $rulefiletoclose = '';
- my @queryvars = ();
- my $displayrulefilerules = 0;
-
- # Check for passed in query string
- if ($ENV{'QUERY_STRING'}) {
- # Split out vars
- @queryvars = split(/\&/, $ENV{'QUERY_STRING'});
-
- # Loop over values
- foreach $value (@queryvars) {
- # Split out var pairs
- ($var, $linkedrulefile) = split(/=/, $value);
-
- # Check if var is 'RULEFILE'
- if ($var eq 'RULEFILE') {
- # Check if rulefile equals linkedrulefile
- if ($rulefile eq $linkedrulefile) {
- # Set display flag
- $displayrulefilerules = 1;
-
- # Strip out rulefile from rulefilelink
- $rulefilelink =~ s/RULEFILE=$linkedrulefile//g;
- } else {
- # Add linked rule file to rulefilelink
- $rulefilelink .= "&RULEFILE=$linkedrulefile";
- }
- }
- }
- }
+ # Local vars
+ my $lines;
+ my $rows;
+ my $col;
- # Strip out extra & & ? from rulefilelink
- $rulefilelink =~ s/^\?\&/\?/i;
+ # New table for the single rules.
+ print "<table width='100%'>\n";
- # Check for a single '?' and replace with page for proper link display
- if ($rulefilelink eq '?') {
- $rulefilelink = "ids.cgi";
- }
+ # Loop over rule file rules
+ foreach my $sid (sort {$a <=> $b} keys(%{$snortrules{$rulefile}})) {
+ # Local vars
+ my $ruledefchecked = '';
+
+ # If 2 rules have been displayed, start a new row
+ if (($lines % 2) == 0) {
+ print "</tr><tr>\n";
- # Output rule file name and checkbox
- print "<tr><td class='base' valign='top'><input type='checkbox' NAME='SNORT_RULE_$rulefile' $rulechecked> <a href='$rulefilelink'>$rulefile</a></td></tr>";
- print "<tr><td class='base' valign='top'>";
+ # Increase rows by once.
+ $rows++;
+ }
- # Check for empty 'Description'
- if ($snortrules{$rulefile}{'Description'} eq '') {
- print "<table width='100%'><tr><td class='base'>No description available</td></tr>";
+ # Colour lines.
+ if ($rows % 2) {
+ $col="bgcolor='$color{'color20'}'";
} else {
- # Output rule file 'Description'
- print "<table width='100%'><tr><td class='base'>$snortrules{$rulefile}{'Description'}</td></tr>";
+ $col="bgcolor='$color{'color22'}'";
}
- # Check for display flag
- if ($displayrulefilerules) {
- # Rule file definition rule display
- print "<tr><td class='base' valign='top'><table border='0'><tr>";
-
- # Local vars
- my $ruledefdisplaycnt = 0;
- my $ruledefcnt = keys %{$snortrules{$rulefile}{"Definition"}};
- $ruledefcnt++;
- $ruledefcnt = $ruledefcnt / 2;
-
- # Loop over rule file rules
- foreach my $ruledef (sort {$a <=> $b} keys(%{$snortrules{$rulefile}{"Definition"}})) {
- # Local vars
- my $ruledefchecked = '';
-
- # If have display 2 rules, start new row
- if (($ruledefdisplaycnt % 2) == 0) {
- print "</tr><tr>";
- $ruledefdisplaycnt = 0;
- }
+ # Set rule state
+ if ($snortrules{$rulefile}{$sid}{'State'} eq 'Enabled') {
+ $ruledefchecked = 'CHECKED';
+ }
- # Check for rules state
- if ($snortrules{$rulefile}{'Definition'}{$ruledef}{'State'} eq 'Enabled') {
- $ruledefchecked = 'CHECKED';
- }
+ # Create rule checkbox and display rule description
+ print "<td class='base' width='5%' align='right' $col>\n";
+ print "<input type='checkbox' NAME='$sid' $ruledefchecked>\n";
+ print "</td>\n";
+ print "<td class='base' width='45%' $col>$snortrules{$rulefile}{$sid}{'Description'}</td>";
- # Create rule file rule's checkbox
- $checkboxname = "SNORT_RULE_$rulefile";
- $checkboxname .= "_$ruledef";
- print "<td class='base'><input type='checkbox' NAME='$checkboxname' $ruledefchecked> $snortrules{$rulefile}{'Definition'}{$ruledef}{'Description'}</td>";
+ # Increment rule count
+ $lines++;
+ }
- # Increment count
- $ruledefdisplaycnt++;
- }
+ # If do not have a second rule for row, create empty cell
+ if (($lines % 2) != 0) {
+ print "<td class='base'></td>";
+ }
- # If do not have second rule for row, create empty cell
- if (($ruledefdisplaycnt % 2) != 0) {
- print "<td class='base'></td>";
- }
+ # Close display table
+ print "</tr></table></td></tr>";
- # Close display table
- print "</tr></table></td></tr>";
- }
+ # Finished whith the rule file, increase count.
+ $rulesetcount++;
+ }
- # Close display table
- print "</table>";
+ # Close display table
+ print "</table>";
- # Increment ruledisplaycnt
- $ruledisplaycnt++;
- }
- print "</td></tr></table></td></tr></table>";
- print <<END
+print <<END
<table width='100%'>
<tr>
- <td width='100%' align='right'><input type='submit' name='ACTION' value='$Lang::tr{'update'}' /></td>
+ <td width='100%' align='right'><input type='submit' name='ACTION' value='$Lang::tr{'update'}'>
<!-- space for future online help link -->
</td>
</tr>
</table>
-</form>
END
;
- &Header::closebox();
-}
+&Header::closebox();
-####################### End added for snort rules control #################################
&Header::closebigbox();
&Header::closepage();
+sub refreshpage {
+ &Header::openbox( 'Waiting', 1, "<meta http-equiv='refresh' content='1;'>" );
+ print "<center><img src='/images/clock.gif' alt='' /><br/><font color='red'>$Lang::tr{'pagerefresh'}</font></center>";
+ &Header::closebox();
+}
+
sub downloadrulesfile {
my $peer;
my $peerport;
system("wget -r -o /var/tmp/log --output-document=/var/tmp/snortrules.tar.gz $url");
}
}
+
+sub readrulesfile ($) {
+ my $rulefile = shift;
+
+ # Open rule file and read in contents
+ open(RULEFILE, "$snortrulepath/$rulefile") or die "Unable to read $rulefile!";
+
+ # Store file content in an array.
+ my @lines = <RULEFILE>;
+
+ # Close file.
+ close(RULEFILE);
+
+ # Loop over rule file contents
+ foreach my $line (@lines) {
+ # Remove whitespaces.
+ chomp $line;
+
+ # Skip blank lines.
+ next if ($line =~ /^\s*$/);
+
+ # Local vars.
+ my $sid;
+ my $msg;
+
+ # Gather rule sid and message from the ruleline.
+ if ($line =~ m/.*msg:\"(.*?)\"\; .* sid:(.*?); /) {
+ $msg = $1;
+ $sid = $2;
+
+ # Check if a rule has been found.
+ if ($sid && $msg) {
+ # Add rule to the snortrules hash.
+ $snortrules{$rulefile}{$sid}{'Description'} = $msg;
+
+ # Grab status of the rule. Check if ruleline starts with a "dash".
+ if ($line =~ /^\#/) {
+ # If yes, the rule is disabled.
+ $snortrules{$rulefile}{$sid}{'State'} = "Disabled";
+ } else {
+ # Otherwise the rule is enabled.
+ $snortrules{$rulefile}{$sid}{'State'} = "Enabled";
+ }
+ }
+ }
+ }
+}
projects / ipfire-2.x.git / blobdiff